Window-lock



D. SPIVAK.

WINDOW LOCK.

-APPL|CATION FILED OCT. 22, 1919.

Patented July 6, 1920.

um/mg jaam/p iizymf Br A TTOR/VE Y8 "it near DAVID SPIVAK, OF NEW HAVEN, CONNECTICUT.

WIND Div-LOCK.

Specification of Letterslatent.

Patented July 6,1920;

Application filed o'ctober 22, 1919. Serial No. 332,374.

[ all whom it may concern:

Be it known that 1, DAVID SPIVAK, a citizen of the United States, and a resident of New Haven, in'the county of New Haven and State of Connecticut, have invented a new and Improved Window-Lock, of which the following is a full, clear, and exact description.

Among the principal objects which the present invention has in view are the following: To provide a lock of the character mentioned which may be placed in service to provide for window ventilation and secured in such manner as to prevent tampon ing with the lock; and to provide a lock of the character mentioned, the cost of construction whereof is reduced.

Drawings.

Figure 1 is a perspective view, showing a :l.ragment of two sliding window sashes held against opening movement by a lock constructed and arranged in accordance with the present invention Fig. 2 is a face View of said lock shown in its inactive position;

Fig. 3 is a longitudinal section of the same, taken on the line 33 of Fig. 2;

Fig. 41- is a face view of the lock when constructed in. accordance with the modified form of the invention, the lock being shown in its inactive position; and

Fig. 5 a longitudinal section of the same, taken on the line 55 in Fig. 4.

Description.

As shown in the drawings, a face plate is provided in convenient arrangement with perforations 11, to receive fastening screws 12. The plate 10 has extensions 13 spaced apart to provide a recess 14, to form a runway for the bolt 15.

The bolt 15 is constructed from relatively thin metal and is provided at the one end with a curled portion 16 forming a finger grip for handling the bolt. At the other end the bolt 15 is bent down to form a stop member 17. The stop member 17 and curled portion 16 serve to prevent the withdrawal of the bolt 15 from the channel formed by the overturned edges 18 of the hinge plate 19.

The hinge plate 19 has a curled extension forming a hinge knuckle 20. The metal forming the knuckle 20 is preferably overturned upon the hinge pin 21 to form a rigid connection therewith. The ends of the pin 21 are held in the overturned portions of the extensions 13 which form hinge knuckles to cooperate with the pin 21 and knuckle 20.

In the preferred form of the invention,

as disclosed in Figs. 1 to?) inclusive, the bolt 15 is locked in the active position by a screw the same is manipulated by the person opcrating the lock. The screw 22 extending thus within the opening 24:, the bolt 15 is held rigidly against shifting from the extended position shown in Fig. 1 of the drawings. When the bolt is withdrawn from the active position and disposed in the inactive position as disclosed in Fig. 3 of the drawings, it is found convenient to tighten the screw 22 to prevent the accidental movement of the bolt 15. and plate 19 connected therewith.

Having a lock constructed and arranged as above described, the operation thereof is as follows: The plate 10 is adjusted on one of the stiles of the upper window sash and there secured by the screws 12 with the extensions 13 overhanging the inner edge of the said stile. The pin 21 and curled ends of the extensions 13 are placed so as to avoid interfering with the lower sash of the window when the lock is in the inactive position. When the plate 10 has been thus disposed and it is desired to set the lock in active position, the bolt 15 is moved to a po sition substantially perpendicular to the plate 10, where the bolt is disposed opposite the recess 1.4:. In this position, pressure is applied to the curled portion 16, the screw 22 having been previously manipulated to disengage the bolt 15, until the opening 2 1 of the said bolt registers with the screw 22. .By manipulating the screw 22 to move the end thereof into the opening 24., the bolt 15 is locked in active position. it will he noted that the screw 22 which .maintains the bolt in looking position, is in accessible from below, being disposed above the top rail of the lower sash. The sashes may now be moved to opento the extent permitted by the arrangement of the plate and the bolt 15.

hen it is desired to release the lock, this is accomplished by manipulating the screw 22 r'eversely, withdrawing the bolt "15. until the stop member 17 thereof passes out of the recess let in the plate 10, tightening the screw 22 to hold the bolt in the inactive position, when the bolt and hinge plate 19 are swung toward the glass of the upper window sash and out of the path of the lower sash In the modified form of the invention, shown in Figs. 4 and 5 of the drawings, a socket 25 is formed on a bracket 26. The

socket 25 is provided to receive the one end -of and hold the other end of the bolt 15 in position r01 interfere with and prevent the lifting of the lower'sash. The operation of the lock when, constructed in accordance with the modified form, is identical with the operation of the preferred form of the lock, except that the screw 22 is dispensed with in themodified construction.

There is also shown in the modified form of the construction eyelets to replace the screw holes in the face plate. WVhen thus constructed several series of screws cor rectly spaced apart, are placed in the upper sash, and theplate lock is shifted from one series of another, and at will.

Having thus described my invention, what I claim as new, and desire to secure by Let- V ters Patent 1s:

bodying a slide. member, a bolt slidably mounted in said. member to pass through said recess to be held thereby in perpendicuadapted to be fixedly mounted on a window stile,said face plate having hinge knuckles extending in service beyond the edge of said stile, said knuckles being spaced apart to form a recess therebetween; a hinge plate pivotally'mounted upon said face plate between said knuckles, said hinge plateembodying a slide member, a bolt mounted in said member to pass through said recess to be held thereby in perpendicular relation to said face plate; and a knurled 'clamp screw provided to clamp the bolt in inwardly disposed or outwardly disposed re lation in the slide.

3. A window lock comprising a face plate adapted to be fixedly mounted on a window stile, said face plate having hinge knuckles extending in service beyond the edge of said stile, said knuckles being spaced apart to form a "recess therebetween; a hinge plate pivotally mounted upon said face plate between said knuckles, said hinge plate embodying a slide member, a bolt mounted in said member to pass through said recess to be held thereby in perpendicular relation to said face plate;.a knurled clamp screw provided to clamp the bolt in inwardly disposed. or outwardly disposed relation in the slide, and a socket madeinte ral with the face plate to inclose the end of the bolt to prevent unscrupulous persons from pressing the bolt outwardly.

et. A'window locking device for installa tion upon either one or the other of a double set of windows, comprising a face plate, a guidehinged on the face plate, a bolt slidable in the guide, a screw mounted in the guide to clamp the'bolt, and a socket integrally formed with the face platefor covering one end of the bolt to'prevent said bolt from being pushed outwardly in the guide.

DAVID SPIVAK. 

